public async Task ExecuteAsync(FFmpegTask ffmpegTask, FFmpegEnviroment enviroment, CancellationToken cancellationToken = default)
{
var startInfo = new ProcessStartInfo
{
// -y overwrite output files
Arguments = "-y " + ffmpegTask.GetCommandString(),
FileName = enviroment.FFmpegPath,
CreateNoWindow = true,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
WindowStyle = ProcessWindowStyle.Hidden
};
await ExecuteAsync(startInfo, ffmpegTask, cancellationToken);
}
/// <summary>
/// start to convert file
/// </summary>
/// <param name="task"></param>
/// <param name="outputFile"></param>
/// <returns></returns>
public static async Task <FileInfo> ConvertAsync(this FFmpegConvertTask task, string outputFile, FFmpegEnviroment enviroment, CancellationToken cancellationToken = default)
{
task.AppendCommand($" \"{outputFile}\" ");
var process = new FFmpegProcess();
await process.ExecuteAsync(task, enviroment, cancellationToken : cancellationToken);
task.OutputFile = new FileInfo(outputFile);
return(task.OutputFile);
}
/// <summary>
/// start to get thumbnail
/// </summary>
/// <param name="task"></param>
/// <param name="outputFile"></param>
/// <returns></returns>
public static async Task <FileInfo> GetThumbnailAsync(this FFmpegThumbnailTask task, string outputFile, FFmpegEnviroment enviroment, CancellationToken cancellationToken = default)
{
task.OutputFile = new FileInfo(outputFile);
task.AppendCommand(CultureInfo.InvariantCulture, " -ss {0} ", TimeSpan.FromSeconds(0));
task.AppendCommand(" -vframes {0} ", 1);
task.AppendCommand($" \"{outputFile}\" ");
var process = new FFmpegProcess();
await process.ExecuteAsync(task, enviroment, cancellationToken : cancellationToken);
return(task.OutputFile);
}
/// <summary>
/// start to get meta data
/// </summary>
/// <param name="task"></param>
/// <returns></returns>
public static async Task <MetaData> GetMetadataAsync(this FFmpegMetadataTask task, FFmpegEnviroment enviroment, CancellationToken cancellationToken = default)
{
task.AppendCommand(" -f ffmetadata - ");
var process = new FFmpegProcess();
await process.ExecuteAsync(task, enviroment, cancellationToken : cancellationToken);
return(task.MetaData);
}